The last requirement is not verified

Question about the task

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Hi guys! This requirement is not verified: The program must record the lengths of the strings in the number array, and then display them on the screen. Why? Thanks a lot!

package com.codegym.task.task07.task0703;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Arrays;

/*
Lonely arrays interact

*/

public class Solution {
    public static void main(String[] args) throws Exception {
        //write your code here
        String[] array1 = new String[10];
        int[] array2 = new int[10];
        int nameLength = 0;

        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        for (int i = 0; i < array1.length; i++)
        {
          array1[i] = reader.readLine();
          nameLength = array1[i].length();
        }

        for (int j = 0; j < array2.length; j++) {
           array2[j] = nameLength;
        }

        System.out.print(Arrays.toString(array2));

    }
}

1. Create an array of 10 strings.
2. Create an array of 10 numbers.
3. Enter 10 strings from the keyboard, and put them in an array of strings.
4. In each element of the number array, record the length of the string whose string array index coincides with the current index of the number array.

Display the contents of the number array, each value on a new line.

Requirements:

The program must create an array of 10 strings.
The program must create an array of 10 integers.
The program should read strings for the array from the keyboard.
The program must record the lengths of the strings in the number array, and then display them on the screen.

package com.codegym.task.task07.task0703; import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Arrays; /* Lonely arrays interact */ public class Solution { public static void main(String[] args) throws Exception { //write your code here String[] array1 = new String[10]; int[] array2 = new int[10]; int nameLength = 0; BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); for (int i = 0; i < array1.length; i++) { array1[i] = reader.readLine(); nameLength = array1[i].length(); } for (int j = 0; j < array2.length; j++) { array2[j] = nameLength; } System.out.print(Arrays.toString(array2)); } }

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Cristian

Level 13 , Ploiesti, Romania

17 November 2020, 05:53

Thank you, sourav!

sourav bamotra

Level 20 , jammu, India

17 November 2020, 05:18

nameLength is int variable so its value keep on updating with completetion of each loop iteration (i.e the final value of nameLength will be the length of the last element in String array) SOLUTION :

for(int i =0; i<array1.length; i++){
array1[i] = reader.readLine();
array2[i] = array1[i].length();
}

here in this case you will be reading String element store it in array1 and for the same String you will find its length and put it in array2. remove or comment line 17,27,28,29

Cristian

Level 13 , Ploiesti, Romania

17 November 2020, 05:55

package com.codegym.task.task07.task0703; import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Arrays; /* Lonely arrays interact */ public class Solution { public static void main(String[] args) throws Exception { //write your code here String[] array1 = new String[10]; int[] array2 = new int[10]; //int nameLength = 0; BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); for(int i =0; i < array1.length; i++){ array1[i] = reader.readLine(); array2[i] = array1[i].length(); } // for (int j = 0; j < array2.length; j++) { // array2[j] = nameLength; //} System.out.print(Arrays.toString(array2)); } } But the last requirement isn't verified. Why?

Guanting Liu

Level 16 , Springfield, United States

17 November 2020, 07:03

First,you already update the second array by the length of each string in the first array,now,everything is done instead of printing output. Second,u don't need to use namelength(array2[j] = namelength) because u can just array2[j] to express the contents,and now u get the contents the requirement needs to println every array2[j] in a new line,what u should do?That's so simple,use a for loop to println every contents in your array2 ,which should be System.out.println(array2[j]) by using a for loop to traverse.

Cristian

Level 13 , Ploiesti, Romania

17 November 2020, 08:04

Okay, Liu! It's clear! Thanks a lot!